High-Latitude Giant: Pacific Sleeper Sharks Patrol Under Arctic Sea Ice

A massive shark cruises beneath solid Arctic ice sheets.

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🤯 Did You Know (click to read)

Arctic sea ice can extend hundreds of kilometers from open water during winter.

Pacific sleeper sharks have been documented in Arctic waters beneath seasonal sea ice, inhabiting environments where air temperatures plummet and daylight can disappear for months.

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💥 Impact (click to read)

Operating below ice cover limits access to surface air-breathing prey and traps the ecosystem in prolonged darkness, yet this shark’s physiology supports year-round survival.

Its presence under ice highlights how climate-driven ice loss could reshape predator-prey dynamics in polar regions, affecting one of the ocean’s largest cold-water sharks.

Source

NOAA Fisheries

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